Mechanism for delivering material



May 12, 1936. E. 5. STORY ET AL MECHANISM FOR DELIVERING MATERIAL FiledAug. 10, 1932 4 Sheets-Sheet l y 12, 1936- E. B. STORY ET AL MECHANISMFOR DELIVERING MATERIAL Filed Aug. 10, 1932 4 Sheets-Sheet 2 INVENTOiii-gm y 1936- E. B. STORY ET AL MECHANISM FOR DELIVERING MATERIAL FiledAug. 10, 1932 4 Sheets-Sheet 3 May 12, 1936.

E. B STORY ET'AL MECHANISM FOR DELIVERING MATERIAL 4 Sheets-Sheet 4Filed Aug. 10, 1932 58 jg 5 l4 3 Patented May 12, 1936 UNITED STATESPATENT OFFICE DIECHANISM FOR DEIJVEBING Application August 10,

18 Claims.

This invention relates broadly to mechanism for delivering material, andmore particularly to mechanism for enabling controlled delivery ofmaterial in a more or less continuous stream.

' The invention relates still more particularly to mechanism fordelivering material from a receptacle in a stream of substantiallyconstant crosssection so that the rate of delivery is substantiallyconstant.

In certain of its more specific aspects the invention relates to pouringmaterial, such as liquid or semi-liquid material, from a receptacle, asby tilting the receptacle, and controlling the rate of pour. The rate ofpour is preferably controlled by the weight of the material beingpoured.

It is often desirable to deliver material in a more or less continuousstream at a controlled rate. For certain purposes it is particularlydesirable to deliver material in a continuous stream of substantiallyconstant cross-section so that the rate of delivery of the materialremains substantially constant. For example, in the manufacture ofwrought iron by the Aston. process in which, in one method of procedure,a stream of molten ferrous material is introduced into a bath of moltenslag, it is desirable to introduce the ferrous material at a constantrate. This has been found difficult due to the great weight and bulk ofthe materials and the heavy and cumbersome machinery necessary. In themanufacture of wrought iron by the Aston process it has heretofore beenthe practice to manually control the rate of pour, as, for example, bycontrolling by a hand rheostat a motor connected with a tiltingreceptacle, so as to pour the ferrous material from such receptacle inas nearly uniform a stream as possible by hand control.

We have devised mechanism for delivering material which is particularlywell adapted for use in introducing molten ferrous material into a slagbath in the manufacture of wrought iron by the Aston process, but whichis also suitable for many other purposes. We provide for automaticcontrol of the rate of delivery of the material so that such rateremains substantially constant without the need of manual control.

Other details, objects and advantages of the invention will becomeapparent as the following description of a present preferred embodimentthereof proceeds.

In the accompanying drawings we have shown a present preferredembodiment of the invention, in which Figure 1 is a diagrammaticelevational view of mechanism for delivering material;

1932, Serial No. 628,125

Figure 2 is an enlarged detail view of a portion of the mechanism shownin Figure 1;

Figure 3 is a plan view of the mechanism shown in Figure 2;

Figure 4 is an end view of the mechanism shown in Figures 2 and 3; and

Figure 51s a diagrammatic view illustrating the operation of a portionof the mechanism.

Referring more particularly to the drawings. there is provided a base 2upon which is mounted for longitudinal reciprocatory motion a platform 3which in turn carries a horizontally rotatable ladle support 4. Carriedon the ladle support 4 are trunnion supports 5 which carry a ladle 6 fortilting movement about trunnions I. The tilting of the ladle is eflectedby a motor 8 operating through reduction gearing 9. The ladle carries aworm wheel 5| with which meshes a worm 52 carried on a shaft 53 which isconnected through a coupling 54 with a shaft 55 leading from thereduction gearing 9. The reduction gearing 9 is connected with the motor8 by shafts 56 and 51 joined by a coupling 58.

The mechanism just described may be of the type described and claimed inthe copending application of Fredrik H. Wille, Serial No. 423,979, filedJanuary 28, 1930. The reciprocation of the platform 3 and the rotationof the ladle support 4 are effected by mechanism not shown in thedrawings of this application but fully disclosed in said Willeapplication. Such mechanism forms no part of the present invention,which is directed more particularly to the rate of delivery of materialfrom the ladle. Therefore, for present purposes the ladle support may beregarded as stationary.

There is provided a standard Ill carrying an upright l I on which isfulcrumed at I2 (Figure 4) a balance beam lit. The longer arm of thebeam is toward the right, viewing Figure 2, and such arm carries a poisel4 adapted to travel along the beam, as will presently be described. Theshorter arm of the beam is toward the left, viewing Figure 2, and aconnection, diagrammatically indicated at l5 (Figure 1), extends fromsuch arm in such manner that the weight of the base 2 and everythingcarried by it tends to pull down the shorter arm of the beam l3. Suchconnection may be formed in accordance with usual practice in the scaleart. Weights l6 are provided at the end of the right-hand arm of thebeam l3 and may be used to counterbalance the weight of the base 2 andthe mechanism carried thereby when the ladle 6 is empty so that the beammay be balanced with the poise ll at the zero mark, which is near theright hand end of the beam ll, viewing Figures l and 2. A balancingweight I! is also provided.

.lournallcd in the beam i8 is a screw 'II with which a detent I! carriedby the poise II is adapted to cooperate so that upon rotation of thescrew the poise will be moved longitudinally of the beam. The screwshaft carries a bevel near which meshes with a bevel gear 2i carried bya cross shaft 22 mounted in the upright ii. The shaft 22 carries gears23, one at either end, which respectively mesh with gears 24 carried byoppositely disposed shafts 28. One of the shafts 15 carries a hand wheelI and the other carries a sprocket 21. The sprocket 21 is mountedloosely on its shaft and may rotate without rotating the shaft. Splinedto such shaft is a clutch member 28 which is operable axially of theshaft by a solenoid 29 and a coil spring 30. The coil spring 30 normallyurges the clutch member 28 toward the right, viewing Figure 4. andcnergization of the solenoid draws the clutch member toward the left. InFigure 4 the clutch member is shown in disengaged position, that is, inits left-hand position, where it is held by energization of the solenoidagainst compression of the spring 30. When the solenoid is dccnergizedthe spring pushes the clutch member toward the right where it engagesthe hub 3| oi the sprocket 21, causing the shaft to which the clutchmember is splined to rotate with the sprocket.

There is provided a motor 32 which drives,

through suitable reduction gearing, a gear 33.

Meshing with the gear 33 is another gear ll keyed to a shaft 35, whichshaft also carries a sprocket 36 connected with the sprocket 21 by asprocket chain 31. The motor 32 may be a variable speed motor, orprovision may be made for changing the gears 33 and 3| so that difierentspeeds of rotation may be imparted to the sprocket 36, and consequentlyto the sprocket chain 81, and the mechanism driven thereby.

Referring now more particularly to Figure 5, the armature oi the motor 8for tilting the ladle 6 is designated diagrammatically at 3|, the seriesfield at 39, the shunt held at Ill and a resistance in series with theshunt field at Ii. Current is supplied to the motor through power linesl2. Leads 43 lead to a relay 44 so that when the circuit through theleads I3 is closed by the relay a circuit of low resistance in parallelwith the relatively high resistance I will be formed, such circuithaving the effect of cutting out the resistance H as the current willflow through the leads .3 instead. The relay 44 is connected by leads 5with a light-sensitive device 46 which may be an ordinary photoelectriccell, or what is commonly known as an "electric eye". A source of light41 is provided for cooperation with the light-sensitive device and theend 01' the beam is carries a diaphragm 48 which, in the lower positionof the beam, interrupts the light rays between the source 01' light andthe light-sensitive device.

When the light rays are thus interrupted the light-sensitive device iseffective through the relay for closing the circuit through the leads I;which cuts out the resistance ll and causes the motor l to operate at aslower speed. When the beam is in its upper position the circuit throughthe leads 43 is broken so that the resistance ll becomes eflective,causing the motor 8 to operate at a faster speed.

A typical operation of the mechanism will DOW be described. With theladle I empty the poise i4 is placed at the zero mark on the scale-beamand the beam is balanced by the addition of a suitable number of weightsII and by manipulation of the balancing weightii. A- desired amount ofmaterial is then introduced into the ladle I and the beam is balancedafter the ladle has thus been filled, such balancing being effected bymoving the poise H along the beam until the point of balance is reached.By suitable graduations on the beam the weight of material in the ladlecan thus be ascertained.

With the clutch 28 open the motor 32 is then started, such motor beingeffective through the gears 33 and 34 and the sprocket 36 and sprocketchain 31 for rotating the sprocket 11. The sprocket 21 being looselycarried on its shaft, such shaft does not rotate when the clutch isopen. The speed of the motor 32 or the size and relation of the gears 34and are adjusted to drive the sprocket 21 at a desired speed which willdetermine, as will presently be described, the rate of unloading of thebeam I! when the clutch 28 is engaged, and consequently also, throughthe other mechanism provided, the rate 01' pouring of material from theladle 6.

The motor 8 is then started which will commence the tilting operation ofthe ladle. Unless the ladle has been filled up to its lip, some degreeof tilting will be required before the material be- I gins to issue fromthe lip of the ladle. The operator watches the ladle and as soon asmaterial begins to issue from its lip he deenergizes the solenoid 29,which permits the spring 30 to move the clutch member 28 into engagementwith the hub 31 of the sprocket 21. This causes rotation of the shaftupon which the sprocket 21 is mounted, which, in turn, through thecorresponding gears 2i and 23, the shaft}! and the bevel gears 2| and20, causes rotation of the screw I! carried by the beam i3. Rotation ofthe screw l8 causes movement of the poise I along the beam toward theleft, viewing Figure 2. This causes progressive unloading of the beam atthe rate at which it is desired to pour material from the ladle 8.

The motor 8 and its cooperative mechanism are so constructed andarranged that the speed of tilting oi the ladle 6 when the resistance 4|is efiective, and consequently at the higher speed of the motor, isslightly greater than the maximum tilting speed required at any timeduring the pour to deliver material from the ladle at the desired rate,that is to say, at the rate corre sponding to the rate of unloading ofthe beam l3 by movement of the poise ll therealong, as above described.Likewise, at the lower speed of the motor, that is, when the resistanceII is not eil'ective, the speed of tilting of the ladle 6 is slightlyless than the minimum tilting speed required at any time during the pourto deliver material from the ladle at the desired rate.

As soon as the material begins to issue from the lip 01 the ladle 6 andthe clutch member II has been engaged the ladle will be deliveringmaterial at a rate roughly approximating the desired rate of deliveryand the poise I will be moving along the beam l3 at precisely thedesired rate of delivery. If the rate of pour exceeds the desired rate,that is to say, if the rate of unloading of the ladle exceeds the rateof unloading of the beam, the right-hand arm of the beam, viewing Figure2, will assume its lower position, which, as above explained, iseil'ective Ior interposing the diaphragm 38 in the path of light passingfrom the light rays 41 to the light-sensitive device 46,

which, in turn, is effective, through the relay 44, for closing thecircuit through the leads It, thus effectively cutting out theresistance ll and reducing the speed of the tilting motor This reducesthe rate of issuance of material from the lip of the ladle 8 to a pointslightly below the desired pouring rate so that the rate of unloading ofthe ladle will thereafter be somewhat less than the rate of unloading ofthe beam. This condition will continue until the weight of the metal inthe ladle overbalances the beam, when the right-hand arm of the beam,viewing Figure 2, will assume its upper position, permitting light fromthe light source 41 to impinge upon the light-sensitive device 40, whichis effective, through the relay 4, for opening the circuit through theleads #3, thus effectively throwing in the resistance 4! and speeding upthe tilting motor 8. Thus upon each movement of the beam the rate ofpour is slightly increased or decreased so that the average rate veryclosely approaches the desired rate of pour.

Thus the contents of the ladle can be, automatically delivered atsubstantially a predetermined uniform rate, eliminating manual control.This has the advantages not only of doing away with the human elementbut also of reducing labor costs. As above mentioned, the mechanism isof particular advantage and utility for use in introducing moltenferrous material into a bath of molten slag in the manufacture ofwrought iron by the Aston process in which the rate of introduction ofthe ferrous material should be as nearly uniform as possible.

The mechanism is equally well adapted for delivery of material at adesired predetermined nonuniform rate. To this end the speed of themotor 32 can be altered during the pour, either manually orautomatically.

Instead of manually controlling the solenoid 29 to throw in the clutch2., operation of such solenoid may be controlled automatically. Thiswould eliminate the need of any manual operation during the pour.

The hand wheel 26 may be used for moving the poise ll along the beam IIwhen the clutch 28 is disengaged. Rotation of the hand wheel causesrotation of its shaft and of the corresponding gear 24 which, throughthe gear 23 meshing therewith, rotates the shaft 22, the bevel gears 2iand Ill, and consequently the screw it which propels the poise along thebeam. When the ladle is being filled with material prior to the pour,the hand wheel 18 may be used to keep the beam in balance and may thusserve to assist in determining the amount of material supplied to theladle. If the beam is kept in balance, or approximately so, duringsupply of material to the ladle, this has the advantage that theoperator will have advance warning when the amount of material suppliedto the ladle nears the desired amount. Such advance warning is ofparticular advantage when the mechanism is used for the manufacture ofwrought iron by the Aston process, as the molten ferrous material may besupplied to the ladle by a tilting ladle carried by an overhead crane,control of which is v relatively dimcult.

Instead of utilizing the light-sensitive device 48 for controlling thetilting motor, suitable electric contacts or other devices may be usedwhich may be directly engaged by the beam l8 upon movement to its upperand lower positions.

While we have shown and described certain present preferred embodimentsof the invention, it is to be distinctly understood that the same is notlimited thereto, but may b== otherwise variously embodied within thescope of the following claims.

We claim:

1. Mechanism for delivering material, comprising delivery means, movablecontrol means, means for exerting on the control means a variable forcethe rate of change in the effectiveness of which on the control meansbears a predetermined relationship to the desired rate of delivery,connections through which a second variable force opposed to the firstis exerted on the control means,- the rate of change in theeffectiveness of said second force on the control means bearing apredetermined relationship to the actual rate of delivery, and meansoperable upon movement of the control means in response to said forceswhen the actual rate of delivery is less than that desired forincreasing such actual rate of delivery of material from the deliverymeans and op erable upon movement of the control means in response tosaid forces when the actual rate of delivery is greater than thatdesired for decreasing such actual rate of delivery of material from thedelivery means.

2. Mechanism for delivering material, comprising delivery means, controlmeans movable in response to the resultant of two opposed variableforces the rates of change in the effectiveness of which on the controlmeans bear predetermined relationships respectively to the desired andactual rates of delivery, and means operable upon movement of thecontrol means in response to said resultant when the actual rate ofdelivery is less than that desired for increasing such actual rate ofdelivery of material from the delivery means and operable upon movementof the control means in response to said resultant when the actual rateof delivery is greater than that desired for decreasing such actual rateof delivery of material from the delivery means.

3. Mechanism for delivering material, comprising a delivery receptacle,movable control means, a. source of energy, means operable by saidsource of energy to exert on the control means a variable force the rateof change in the effectiveness of which on the control means isproportional to the desired rate of delivery from said receptacle,connections sensitive to the change in the amount of material in saidreceptacle on delivery of material therefrom to exert on the controlmeans a second variable force opposed to the first the rate of change inthe effectiveness of which on the control means is proportional to theactual rate of delivery from said receptacle, and means operable uponmovement of the control means in response to said forces when the actualrate of delivery is less than that desired for increasing such actualrate of delivery of material from said receptacle and operable uponmovement of the control means in response to said forces when the actualrate of delivery is greater than that desired for decreasing such actualrate of delivery of material from said receptacle.

4. Mechanism for delivering material, comprising a delivery receptacle,movable control means,

a source of energy. means operable by said source of energy to exert onthe control means a variable force the rate or change in theeffectiveness of which on the control means bears a predeterminedrelationship to the desired rate of delivery from said receptacle,connections sensitive to the weight 01 material delivered from saidreceptacle to exert on the control means a second variable force opposedto the first the rate of change in the effectiveness of which on thecontrol means bears a predetermined relationship to the actual rate ofdelivery from said receptacle, and means operable upon movement of thecontrol means in response to said forces when the actual rate ofdelivery is less than that desired for increasing such actual rate ofdelivery 01' material from said receptacle and operable upon movement ofthe control means in response to said forces when the actual rate ofdelivery is greater than that desired for decreasing such actual rate ofdelivery of material from said receptacle. I

5. Mechanism for delivering material, comprising a tiltable deliveryreceptacle, movable control means, a source of energy, means operable bysaid source of energy to exert on the control means a variable force therate of change in the effectiveness of which on the control means bearsa predetermined relationship to the desired rate of delivery from saidreceptacle, connections sensitive to delivery of material from saidreceptacle to exert on the control means a second variable force opposedto the first the rate of change in the effectiveness of which on, thecontrol means bears a predetermined relationship to the actual rate ofdelivery from said receptacle, and means operable upon movement of thecontrol means in response to said forces when the actual rate ofdeliveryis less than that desired for increasing the rate of tilting of thereceptacle and operable upon movement of the control means in responseto said forces when the actual rate of delivery is greater than thatdesired for decreasing the rate of tilting of the receptacle.

6. Mechanism for delivering material, comprising a delivery receptacle,control means movable by the resultant of a predeterminedly eifectiveindependently applied variable force and an independently variable iorceopposed to said first mentioned force and bearing a predeterminedrelationship to the rate of delivery of material from said receptacle,and means operable upon movement of the control means in response tosaid resultant when the actual rate of delivery is less than thatdesired for increasing such actual rate 01 delivery of material fromsaid receptacle and operable upon movement oi the control means inresponse to said resultant when the actual rate oi delivery is greaterthan that desired for decreasing such actual rate of delivery ofmaterial from said receptacle.

7. Mechanism for delivering material, comprising a delivery receptacle,connections operable in predetermined relationship to the rate ofdelivery of material from said receptacle, control means movable by theresultant of a predeterminedly eii'ective independently applied variableforce and an independently variable force opposed to said firstmentioned force and controlled by said connections, and means operableupon movement 01' the control means in response to said resultant whenthe actual rate of delivery is less than that desired for increasingsuch actual rate of delivery of material from said receptacle andoperable upon movement of the control means in response to saidresultant when the actual rate of delivery is greater than that desiredfor decreasing such actual rate of delivery of material from saidreceptacle.

8. Mechanism for delivering material, comprising a delivery receptacle,movable control means, a source of energy, means operable by said sourceof energy to exert on the control means a variable force the rate ofchange in the effectiveness of which on the control means bears apredetermined relationship to the desired rate of delivery from saidreceptacle, connections exerting on the control means a second variableforce opposed to the first the rate of change in the effectiveness ofwhich on the control means bears a predetermined relationship to theactual rate of delivery from said receptacle, and means operable upomovement of the control means in response to said forces when the actualrate of delivery is less than that desired for increasing such actualrate of delivery of material from said receptacle and operable uponmovement of the control means in response to said resultant when theactual rate of delivery is greater than that desired for decreasing suchactual rate of delivery of material from said receptacle.

9. Mechanism for delivering material, comprising a delivery receptacle,control means movable by the resultant of a predeterminedly effectiveindependently applied variable force and an independently variable forceopposed to said first mentioned force and controlled by the change inthe amount of material in said receptacle on delivery of materialtherefrom, and means operable upon movement of the control means inresponse to said resultant when the actual rate of delivery is less thanthat desired for increasing such actual rate of delivery of materialfrom said receptacle and operable upon movement of the control means inresponse to said resultant when the actual rate of delivery is greaterthan that desired for decreasing such actual rate of delivery ofmaterial from said receptacle.

l0. Mechanism for delivering material, com-- prising a deliveryreceptacle, control means including a tiltable beam movable by theresultant of a predeterminedly effective independently applied variableforce and an independently variable force opposed to said firstmentioned force and controlled by delivery of material from saidreceptacle, and means operable upon movement of the control means inresponse to said resultant when the actual rate of delivery is less thanthat desired for increasing such actual rate of delivery of materialfrom said receptacle and operable upon movement of the control means inresponse to said resultant when the actual rate of delivery is greaterthan that desired for decreasing such actual rate of delivery ofmaterial from said receptacle.

l1. Mechanism for delivering material, comprising a delivery receptacle,control means movable by the resultant of a predeterminedly effectiveindependently applied variable force and an independently variable forceopposed to said first mentioned force and controlled by delivery ofmaterial from said receptacle, and means including light-sensitive meansoperable upon movement of the control means in response to saidresultant when the actual rate of delivery is less than that desired forincreasing such actual rate of delivery of material from said receptacleand operable upon movement of the control means in response to saidresultant when the actual rate of delivery is greater than that desiredfor decreasing such actual rate of delivery of material am saidreceptacle.

12. Mechanism for delivering material, comprising a delivery receptacle,control means including a tiltable beam movable by the resultant of apredeterminedly effective independently applied variable force and anindependently variable force opposed to said first mentioned force andcontrolled by delivery of material from said receptacle, and meansoperable upon tilting of said beam in response to said resultant whenthe actual rate of delivery is less than that desired for increasingsuch actual rate of delivery of material from said receptacle andoperable upon tilting of said beam in response to said resultant whenthe actual rate of delivery is greater than that desired for decreasingsuch actual rate of delivery of material from said receptacle.

13. Mechanism for delivering material, comprising a delivery receptacle,control means including a tiltable beam movable by the resultant of apredeterminedly effective independently applied variable force and anindependently variable force opposed to said first mentioned force andcontrolled by delivery of material from said receptacle, andlight-sensitive means operable upon tilting of said beam in response tosaid resultant when the actual rate or delivery is less than thatdesired for increasing such actual rate of delivery of material irornsaid receptacle and operable upon tilting of said beam in response tosaid resultant when the actual rate of delivery is greater than thatdesired for decreasing such actual rate of delivery of material fromsaid receptacle.

l4. Mechanism for delivering material, comprising a delivery receptacle,control means including a tiltable beam, a poise predetermine llymovable along said beam, said beam being tiltable by the resultant ofthe variable force applied by movement of said poise therealong and anindependently variable force opposed to said first mentioned force andcontrolled by delivery of material from said receptacle, and meansoperable upon tilting of said beam in response to said 7 resultant whenthe actual rate of delivery is less than that desired for increasingsuch actual rate oi delivery 01. material from said receptacle andoperable upon tilting of said beam in response to said resultant whenthe actual rate of delivery is greater than that desired for decreasingsuch actual rate oi. delivery of material from said receptacle.

15. Mechanism for delivering material, comprising a tiltable deliveryreceptacle, control means movable by the resultant of a predeterminedlyeflectlve independently applied variable iorce and an independentlyvariable force opposed to said first mentioned force and controlled bydelivery of material from said receptacle, and means operable uponmovement of the control means in response to said resultant when theactual rate or delivery isless than that desired for increasing the rateoi. tilting of said receptacle and operable upon movement of the controlmeans in response to said resultant when the actual rate of delivery isgreater than that desired for decreasing the rate of tilting of saidreceptacle.

16. Mechanism for delivering material, comprising a delivery receptacle,control means including a fulcrumed member, means for applying to saidfulcrumed member a predeterminedly effective variable force, means forapplying to said fulcrumed member an independently variable forceopposed to said first mentioned force and controlled by delivery ofmaterial irom said receptacle, and means operable upon movement of saidfulcrumed member under the action of said forces when the actual rate ofdelivery is less than that desired for increasing such actual rate ofdelivery of material from said receptacle and operable upon movement ofsaid Iulcrumed member under the action of said forces when the actualrate of delivery is greater than that desired for decreasing such actualrate of delivery of material from said receptacle.

17. Mechanism for delivering material, comprising a delivery receptacle,means controlling delivery of material from said receptacle, meansmovable by the resultant of a predeterminedly effective independentlyapplied variable force and an independently variable force opposed tosaid first mentioned force and controlled by delivery of material fromsaid receptacle, and means operable upon movement of said last mentionedmeans in response to said resultant when the actual rate of delivery isless than that desired for actuating said first mentioned means toincrease such actual rate of delivery of material from said receptacleand operable upon movement of said last mentioned means in response tosaid resultant when the actual rate oi delivery is greater than thatdesired for actuating said first mentioned means to decrease such actualrate of delivery of material from said receptacle.

18. Mechanism for delivering material, comprising a delivery receptacle,electrically actuated means controlling delivery of material from saidreceptacle, and means movable by the resultant of a predeterminedlyeffective independently applied variable force and an independentlyvariable force opposed to said first mentioned force and controlled bydelivery of material from said receptacle, said last mentioned meansbeing operable in response to said resultant when the actual rate ofdelivery is less than that desired for controlling said electricallyactuated means to increase such actual rate of delivery of material fromsaid receptacle and being operable in response to said resultant whenthe actual rate or delivery is greater than that desired for controllingsaid electrically actuated means to decrease such actual rate ordelivery of material from said receptacle.

EDWARD B. STORY.

WM. '1. CASE.

